WebkitGTK+ up to 2.20.1 TextureMapperLayer.cpp TextureMapperLayer use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in WebkitGTK+ up to 2.20.1. This vulnerability affects the function WebCore::TextureMapperLayer of the file WebCore/platform/graphics/texmap/TextureMapperLayer.cpp. Executing a manipulation can lead to use after free. This vulnerability is handled as CVE-2018-12294. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in WebkitGTK+ up to 2.20.1 (Web Browser). It has been declared as critical. This vulnerability affects the function WebCore::TextureMapperLayer of the file WebCore/platform/graphics/texmap/TextureMapperLayer.cpp. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

WebCore/platform/graphics/texmap/TextureMapperLayer.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.2, is vulnerable to a use after free for a WebCore::TextureMapperLayer object.

The bug was discovered 06/13/2018. The weakness was released 06/19/2018 as not defined posting (Bugtraq). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2018-12294 since 06/13/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 112078 (GLSA-201808-04 : WebkitGTK+: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading to version 2.20.2 eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (112078). Entries connected to this vulnerability are available at VDB-118831, VDB-118832 and VDB-119715. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 112078
Nessus Name: GLSA-201808-04 : WebkitGTK+: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: WebkitGTK+ 2.20.2

Timelineinfo

06/13/2018 🔍
06/13/2018 +0 days 🔍
06/19/2018 +5 days 🔍
06/19/2018 +0 days 🔍
06/20/2018 +1 days 🔍
08/22/2018 +63 days 🔍
08/23/2018 +1 days 🔍
03/28/2023 +1678 days 🔍

Sourcesinfo

Advisory: 148200⛔
Status: Not defined

CVE: CVE-2018-12294 (🔍)
GCVE (CVE): GCVE-0-2018-12294
GCVE (VulDB): GCVE-100-119716
See also: 🔍

Entryinfo

Created: 06/20/2018 13:45
Updated: 03/28/2023 09:37
Changes: 06/20/2018 13:45 (70), 02/20/2020 15:55 (2), 03/28/2023 09:37 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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